| 111 |
D. Y. Kim
J. K. Nam
G. H. Jang |
Reduction of Magnetically Induced Vibration of a Spoke-Type IPM Motor Using Magnetomechanical Coupled Analysis and Optimization |
IEEE Transactions on Magnetics |
Vol.49, No.9, 0018-9464 |
2013.09 |
| 110 |
J. H. Lee
G. H. Jang
K. M. Jung |
Optimal Design of Fluid Dynamic Bearings to develop a Robust Disk-spindle System in a Hard Disk Drive Utilizing Modal Analysis |
Microsystem Technologies |
Vol.19 pp 1495-1504 |
2013.09 |
| 109 |
Y. H. Jung
G. H. Jang
K. M. Jung
H. K. Jang |
Analysis of the Oil injection Process in Fluid Dynamic Bearings of the Spindle Motor of Computer Hard Disk Drives |
Microsystem Technologies |
Vol.19 pp 1465-1474 |
2013.09 |
| 108 |
K. M. Jung
J. H. Lee
Y. H. Jung
H. K. Jang
G. H. Jang |
Behavior Analysis of Air Bubbles in the Oil Lubricant of FDBs at Low Speed Operating Conditions |
Microsystem Technologies |
Vol.19 pp 1475-1482 |
2013.09 |
| 107 |
K. Y. Park
S. J. Sung
G. H. Jang |
Magnetically Induced Vibrations of a Flexible Rotating Disk-Spindle System due to the Internal Magnetic Force Arising from the Spindle Motor of a HDD |
Microsystem Technologies |
Vol.19 pp 1529-1537 |
2013.09 |
| 106 |
D. Y. Kim
G. H. Jang
J. K. Nam |
Magnetically Induced Vibrations in an IPM Motor Due to Distorted Magnetic Forces Arising From Flux Weakening Control |
IEEE Transactions on Magnetics |
Vol.49 No.07 pp 3929-3932 |
2013.07 |
| 105 |
S.J.Sung
G.H.Jang
J.W.Jang
J.Y.Song
and H.J.Lee |
Vibration and Noise in a HDD Spindle Motor Arising from the Axial UMF Ripple |
IEEE TRANSACTIONS ON MAGNETICS |
VOL. 49, NO. 6, pp 2489-2494 |
2013.06 |
| 104 |
Yusuf cinar
J. W. Jang
G. H. Jang
S. S. Kim
J. S. Jang |
Effect of solder pads on the fatigue life of FBGA memory modules under harmonic excitation by using a global-local modeling technique |
Microelectronics Reliability |
Vol.53 No.12 pp 2043-2051 |
2013.06 |
| 103 |
K. J. Kang
G. H. Jang
S. J. Sung |
Frequency Characteristics of BEMF, Cogging Torque and UMF in a HDD Spindle Motor due to Unevenly Magnetized PM |
IEEE Transactions on Magnetics |
Vol.49 No.06 pp 2578-2581 |
2013.06 |
| 102 |
K. M. Jung
Y. H. Jung
J. H. Lee
H. K. Jang
G. H. Jang |
Motions of Air Bubbles Trapped in Grooved and Plane Journal Bearings of Operating Fluid Dynamic Bearings |
IEEE Transactions on Magnetics |
Vol.49 No.06 pp 2433-2436 |
2013.06 |
| 101 |
J. H. Lee
M. H. Lee
G. H. Jang |
Experimental Verification of the Optimal FDBs in a HDD Spindle Motor to Minimize Power Loss |
IEEE Transactions on Magnetics |
Vol.49 No.06 pp 2437-2440 |
2013.06 |
| 100 |
K. H. Yim
J. W. Jang
G. H. Jang
M. G. Kim
K. N. Kim |
Forced Vibration Analysis of an IPM Motor for Electrical Vehicles due to Magnetic Force |
IEEE Transactions on Magnetics |
Vol.48, No.11, pp 2981-2984 |
2012.11 |
| 99 |
S. M. Jeon
G. H. Jang |
Precise Steering and Unclogging Motions of a Catheter with a Rotary Magnetic Drill Tip Actuated by a Magnetic Navigation System |
IEEE Transactions on Magnetics |
Vol.48 No.11 |
2012.11 |
| 98 |
S. J. Sung
G. H. Jang
H. J. Lee |
Torque ripple and Unbalanced Magnetic Force of a BLDC Motor due to the Connecting wire between Slot Windings |
IEEE Transactions on Magnetics |
Vol.48 No.11 pp 3319-3322 |
2012.11 |
| 97 |
J. Y. Kim
S. J. Sung
G.H. Jang |
Characterization and Experimental Verification of the Axial Unbalanced Magnetic Force in Brushless DC Motors |
IEEE Transactions on Magnetics |
Vol.48 No. 11 pp 3001-3004 |
2012.11 |
| 96 |
J. H. Lee
G. H. Jang
H. J. Ha |
Robust optimal design of the FDBs in a HDD to reduce NRRO and RRO |
Microsystem Technologies |
Vol.18 pp 1335-1342 |
2012.09 |
| 95 |
S. J. Sung
G. H. Jang
C. J. Lee
K. J. Kang |
Analysis of PDT noise originating from driving method of a HDD spindle motor |
Microsystem Technologies |
Vol.18 pp 1365?1371 |
2012.09 |
| 94 |
K. M. Jung
G. H. Jang
J. H. Kim |
Behavior of fluid lubricant and air-oil interface of operating FDBs due to operating condition and seal design |
Microsystem Technologies |
Vol.18 pp 1373-1381 |
2012.09 |
| 93 |
Y. H. Jung
G. H. Jang |
Reduction of windage loss of an optical disk drive utilizing air-flow analysis and response surface methodology |
Microsystem Technologies |
Vol.18, pp 1445-1453 |
2012.09 |
| 92 |
S. J. Sung
G. H. Jang
K. J. Kang
J. Y. Kim
D. H. Park
D. H. Choi |
Development and optimal design of a HDD spindle motor with pulling magnet to reduce electrical loss |
Microsystem Technologies |
Vol.18 pp 1359-1364 |
2012.09 |
| 91 |
D. K. Jang
J. H. Chang
G. H. Jang |
Back EMF Design of an AFPM Motor using PCB Winding by Quasi 3D Space Harmonic Analysis Method |
Journal of Electrical Engineering &Technology |
Vol.07, No.05, pp 730-735 |
2012.07 |
| 90 |
K. J. Kang
G. H. Jang
S. J. Sung
J. H. Chang |
Development of a highly efficient brushless dc motor utilizing both radial and axial air gaps |
Journal of applied physics |
Vol. 111 pp 07E721-1-07E721-3 |
2012.03 |
| 89 |
S. M. Jeon
G. H. Jang
H. C. Choi
S. H. Park
J. O. Park |
Magnetic navigation system for the precise helical and translational motions of a microrobot in human blood vessels |
Journal of applied physics |
Vol. 111 pp 07E702-1-07E702-3 |
2012.02 |
| 88 |
H. W. Kim
G. H. Jang
H. J. Ha |
A generalized Reynolds equation and its perturbation equations for fluid dynamic bearings with curved surfaces |
Tribology International |
Tribology International vol50, pp6-15 |
2011.12 |
| 87 |
Yusuf Cinar
J. W. Jang
G. H. Jang
S. S. Kim
J. S. Jang
J. K.Chang
Y. H. Jun |
Failure mechanism of FBGA solder joints in memory module subjected to harmonic excitation |
Microelectronics Reliability |
Vol. 52 No.4 pp 735-743 |
2011.11 |
| 86 |
C. J. Lee
G. H. Jang |
Development of a New Magnetizing Fixture for the Permanent Magnet Brushless DC Motors to Reduce the Cogging Torque |
IEEE Transactions on Magnetics |
Vol. 47 No.7 pp 2410-2413 |
2011.10 |
| 85 |
S. M. Jeon
G. H. Jang
H. C. Choi
S. H. Park
J. O. Park |
Utilization of Magnetic Gradients in a Magnetic Navigation System for the Translational Motion of a Micro-Robot in Human Blood Vessels |
IEEE Transactions on Magnetics |
Vol. 47 No.10 pp 2403-2406 |
2011.10 |
| 84 |
C. J. Lee
C. I. Lee
G. H. Jang |
Source and Reduction of Uneven Magnetization of the Permanent Magnet of a HDD Spindle Motor |
IEEE Transactions on Magnetics |
Vol. 47 No.7 pp 1929-1932 |
2011.07 |
| 83 |
S. J. Sung, S. J. Park, G. H. Jang |
Cogging Torque of Brushless DC Motors Due to the Interaction Between the Uneven Magnetization of a Permanent Magnet and Teeth Curvature |
IEEE Transactions on Magnetics |
Vol. 47 No.7 pp 1923-1928 |
2011.07 |
| 82 |
K. M. Jung
G. H. Jang |
Axial Shock-Induced Motion of the Air-Oil Interface of Fluid Dynamic Bearings of a Non-Operating Hard Disk Drive1 |
IEEE Transactions on Magnetics |
Vol. 47 No.7 pp 1911-1917 |
2011.07 |
| 81 |
J. H. Lee
G. H. Jang |
Design Optimization of FDBs to Minimize Friction Torque |
IEEE Transactions on Magnetics |
Vol. 47 No.7 pp 1933-1936 |
2011.07 |
| 80 |
Y. H. Jung
G. H. Jang
M. G. Kim
Yusuf Cinar |
Reduction of aero-acoustic noise originated from a high-speed polygon mirror scanner motor of a laser beam printer utilizing air-flow analysis |
Microsystem Technologies |
Vol. 17 No. 5-7 pp 771-776 |
2011.06 |
| 79 |
H. W. Kim
G. H. Jang
S. H. Lee |
Complete determination of the dynamic coefficients of coupled journal and thrust bearings considering five degrees of freedom for a general rotor-bearing system |
Microsystem Technologies |
Vol. 17 No. 5-7 pp 749-759 |
2011.06 |
| 78 |
M. G. Kim
G. H. Jang
J. H. Lee |
Robust design of a HDD spindle system supported by fluid dynamic bearings utilizing the stability analysis of five degrees of freedom of a general rotor-bearing system |
Microsystem Technologies |
Vol. 17 No. 5-7 pp 761-770 |
2011.06 |
| 77 |
J. H. Lee
G. H. Jang
K. M. Jung
H. J. Ha |
Stability analysis of a whirling disk-spindle system supported by FDBs with rotating grooves |
Microsystem Technologies |
Vol. 17, No. 5-7, pp 787-797 |
2011.06 |
| 76 |
S. M. Jeon
G. H. Jang
J. H. Choi
S. H. Park
J. O. Park |
Precise manipulation of a microrobot in the pulsatile flow of human blood vessels using magnetic navigation system |
Journal of applied physics |
Vol. 109 pp 07B316-1-07B316-3 |
2011.04 |
| 75 |
H. C. Choi
K. R. Cha
J. H. Choi
S. M.Jeong
S. M. Jeon
G. H. Jang
J. O. Park
S. H. Park |
EMA system with gradient and uniform saddle coils for 3D locomotion of microrobot |
Sensors and Actuators |
Vol. A-163 pp 410-417 |
2010.09 |
| 74 |
S. M. Jeon
G. H. Jang
H. C. choi
S. H. Park |
Magnetic navigation system with gradient and uniform saddle coils for the wireless manipulation of micro-robots in human blood vessels |
IEEE Transactions on Magnetics |
Vol. 46, No.6 pp1943-1946 |
2010.06 |
| 73 |
M. G. Kim
G. H. Jang
H. W. Kim |
Stability analysis of a disk-spindle system supported by coupled journal and thrust bearings considering five degrees of freedom |
Tribology International |
Vol. 43 pp1479-1490 |
2010.02 |
| 72 |
C. H. Seo
K. Y. Park
G. H. Jang |
Modal Contirbution Analysis of a Complete Flexible Operating HDD Affecting the Head-Disk Motion Due to Shock |
Microsystem Technologies |
Vol. 16 pp179~185 |
2010.01 |
| 71 |
M. G. Kim
G. H. Jang
C. J. Lee
D. O. Lim |
Experimental Identification of Abnormal Noise and Vibration in a High-Speed Polygon Mirror Scanner Motor Due to Mechanical Contact of Plain Journal Bearing |
Microsystem Technologies |
Vol. 16 pp3~8 |
2010.01 |
| 70 |
K. Y. Park
G. H. Jang |
Dynamics of a HDD spindle system due to its structural design variables and the design variables of FDBs |
IEEE Transactions on Magnetics |
Vol. 45, NO. 11, pp5135~5140 |
2009.11 |
| 69 |
K. Y. Koak
H. W. Kim
K. M. Jung
G. H.Jang |
Dynamic characteristics of a HDD spindle system due to imperfect shaft roundness |
IEEE Transactions on Magnetics |
Vol. 45, NO. 11, pp5148~5151 |
2009.11 |
| 68 |
K. Y. Koak
G. H. Jang
H. W. Kim |
Whirling. tilting and axial motions of a HDD spindle system due to the manufacturing errors of FDBs |
Microsystem Technologies |
Vol. 15 p1701~1709 |
2009.10 |
| 67 |
K. M. Jung
G. H. Jang
C. H. Seo
M. G. Kim |
Finite element analysis of unbalance response of high-speed polygon mirror scanner motor considering the flexibility of the structure |
Microsystem Technologies |
Vol. 15 pp1629~1636 |
2009.10 |
| 66 |
S. J. Park
G. H. Jang |
Investigation of the position error signal of an operating hard disk drive due to varying temperature conditions |
Microsystem Technologies |
Vol. 15 pp1583~1590 |
2009.10 |
| 65 |
H. C. Choi
J. H. Choi
G. H. Jang
J. O. Park |
Two-dimensional actuation of a microrobot with a stationary two-pair coil system |
Smart Materials And Sturctures |
Vol.18, No.9 055007-1~9 |
2009.05 |
| 64 |
C. I. Lee
G. H. Jang |
Noninvasive Detection of Unevenly Magnetized Permanent Magnet of a Brushless DC Motor by Characterizing Back Electro Motive Force |
Journal of Applied Physics |
Vol.105, No.7 07F107-1~07F107-3 |
2009.04 |